137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
|
#ifndef __MULTIBOOT_H__
|
|||
|
|
#define __MULTIBOOT_H__
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
|
|||
|
|
|
|||
|
|
/* Must pass memory information to OS. */
|
|||
|
|
#define MULTIBOOT_MEMORY_INFO 0x00000002
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_VIDEO_MODE 0x00000004
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_AOUT_KLUDGE 0x00010000
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_FLAGS (MULTIBOOT_MEMORY_INFO | \
|
|||
|
|
MULTIBOOT_VIDEO_MODE | \
|
|||
|
|
MULTIBOOT_AOUT_KLUDGE)
|
|||
|
|
|
|||
|
|
/* consts used for Multiboot pre-init */
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_ENTRY_OFFSET 0x200
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_LOAD_ADDRESS 0x200000-MULTIBOOT_ENTRY_OFFSET
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_VIDEO_MODE_EGA 1
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_VIDEO_BUFFER 0xB8000
|
|||
|
|
|
|||
|
|
/* Usable lower memory chunk has a upper bound */
|
|||
|
|
#define MULTIBOOT_LOWER_MEM_MAX 0x7f800
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_CONSOLE_LINES 25
|
|||
|
|
#define MULTIBOOT_CONSOLE_COLS 80
|
|||
|
|
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_STACK_SIZE 4096
|
|||
|
|
#define MULTIBOOT_PARAM_BUF_SIZE 1024
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_KERNEL_a_text 0x48
|
|||
|
|
#define MULTIBOOT_KERNEL_a_data (0x48+4)
|
|||
|
|
#define MULTIBOOT_KERNEL_a_total (0x48+16)
|
|||
|
|
|
|||
|
|
/* Flags to be set in the ’flags’ member of the multiboot info structure. */
|
|||
|
|
|
|||
|
|
#define MULTIBOOT_INFO_MEMORY 0x00000001
|
|||
|
|
|
|||
|
|
/* Is there a boot device set? */
|
|||
|
|
#define MULTIBOOT_INFO_BOOTDEV 0x00000002
|
|||
|
|
|
|||
|
|
/* Is the command-line defined? */
|
|||
|
|
#define MULTIBOOT_INFO_CMDLINE 0x00000004
|
|||
|
|
|
|||
|
|
/* Are there modules to do something with? */
|
|||
|
|
#define MULTIBOOT_INFO_MODS 0x00000008
|
|||
|
|
|
|||
|
|
/* get physical address by data pointer*/
|
|||
|
|
#define PTR2PHY(ptr) (kernel_data_addr+(u32_t)(ptr))
|
|||
|
|
|
|||
|
|
/* get data pointer by physical address*/
|
|||
|
|
#define PHY2PTR(phy) ((char *)((u32_t)(phy)-kernel_data_addr))
|
|||
|
|
|
|||
|
|
/* Get physical address by function pointer*/
|
|||
|
|
#define FUNC2PHY(fun) (MULTIBOOT_LOAD_ADDRESS + MULTIBOOT_ENTRY_OFFSET + (u32_t)(fun))
|
|||
|
|
|
|||
|
|
#ifndef __ASSEMBLY__
|
|||
|
|
|
|||
|
|
#include <minix/types.h>
|
|||
|
|
/* The symbol table for a.out. */
|
|||
|
|
struct multiboot_aout_symbol_table
|
|||
|
|
{
|
|||
|
|
u32_t tabsize;
|
|||
|
|
u32_t strsize;
|
|||
|
|
u32_t addr;
|
|||
|
|
u32_t reserved;
|
|||
|
|
};
|
|||
|
|
/* The section header table for ELF. */
|
|||
|
|
struct multiboot_elf_section_header_table
|
|||
|
|
{
|
|||
|
|
u32_t num;
|
|||
|
|
u32_t size;
|
|||
|
|
u32_t addr;
|
|||
|
|
u32_t shndx;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
|
|||
|
|
typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
|
|||
|
|
|
|||
|
|
struct multiboot_info
|
|||
|
|
{
|
|||
|
|
/* Multiboot info version number */
|
|||
|
|
u32_t flags;
|
|||
|
|
/* Available memory from BIOS */
|
|||
|
|
u32_t mem_lower;
|
|||
|
|
u32_t mem_upper;
|
|||
|
|
/* "root" partition */
|
|||
|
|
u32_t boot_device;
|
|||
|
|
/* Kernel command line */
|
|||
|
|
u32_t cmdline;
|
|||
|
|
/* Boot-Module list */
|
|||
|
|
u32_t mods_count;
|
|||
|
|
u32_t mods_addr;
|
|||
|
|
union
|
|||
|
|
{
|
|||
|
|
multiboot_aout_symbol_table_t aout_sym;
|
|||
|
|
multiboot_elf_section_header_table_t elf_sec;
|
|||
|
|
} u;
|
|||
|
|
/* Memory Mapping buffer */
|
|||
|
|
u32_t mmap_length;
|
|||
|
|
u32_t mmap_addr;
|
|||
|
|
/* Drive Info buffer */
|
|||
|
|
u32_t drives_length;
|
|||
|
|
u32_t drives_addr;
|
|||
|
|
/* ROM configuration table */
|
|||
|
|
u32_t config_table;
|
|||
|
|
/* Boot Loader Name */
|
|||
|
|
u32_t boot_loader_name;
|
|||
|
|
/* APM table */
|
|||
|
|
u32_t apm_table;
|
|||
|
|
/* Video */
|
|||
|
|
u32_t vbe_control_info;
|
|||
|
|
u32_t vbe_mode_info;
|
|||
|
|
u16_t vbe_mode;
|
|||
|
|
u16_t vbe_interface_seg;
|
|||
|
|
u16_t vbe_interface_off;
|
|||
|
|
u16_t vbe_interface_len;
|
|||
|
|
};
|
|||
|
|
typedef struct multiboot_info multiboot_info_t;
|
|||
|
|
|
|||
|
|
/* Buffer for multiboot parameters */
|
|||
|
|
extern char multiboot_param_buf[];
|
|||
|
|
|
|||
|
|
/* Physical address of kernel data segment */
|
|||
|
|
extern phys_bytes kernel_data_addr;
|
|||
|
|
|
|||
|
|
#endif /* __ASSEMBLY__ */
|
|||
|
|
#endif /* __MULTIBOOT_H__ */
|